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Health - Public Health News

Posted on: October 28, 2022

Shellfish Harvest Closure Lifted in Northern Whatcom County, Closures Remain in Other Areas

The Washington State Department of Health (DOH) has re-opened recreational shellfish harvesting at all beaches from Sandy Point North, including Point Roberts. DOH has also reopened Lummi Bay and the East side of Lummi Island for collection of all types of shellfish except the harvest of butter and varnish clams.

 

Southern Whatcom County beaches including Bellingham Bay, Portage Bay and Chuckanut Bay remain closed to the harvest of all species of molluscan shellfish.

 

Shellfish sold in restaurants and retail markets have been tested before distribution and are safe to eat.

 

DOH and Whatcom County Health Department will continue to monitor biotoxins in molluscan shellfish.  We will notify the public when there is a change in biotoxin levels that may affect public health. Keep in mind that biotoxin levels can change rapidly. Shellfish harvesters are advised to “Know Before You Dig”. Always check for current biotoxin and pollution closures at the DOH Shellfish Safety Information website or call the DOH Biotoxin Hotline at 1-800-562-5632 before harvesting shellfish anywhere in Washington State.

 

Algae that contain marine biotoxins cannot be seen and must be detected by laboratory testing. During a biotoxin event, mussels and varnish clams usually contain the highest toxin concentration. PSP and other naturally occurring biotoxins are not destroyed by cooking or freezing. Crab meat is not affected, but “crab butter” and crab entrails can harbor biotoxins so they should always be discarded. Molluscan shellfish include clams, mussels, oysters and scallops. 

 

PSP biotoxin can cause severe illness and death.  Symptoms include numbness and tingling of lips and tongue, which may begin within minutes of eating toxic shellfish or may take an hour or two to develop. Symptoms may progress to tingling of fingers and toes and then loss of control of arms and legs, followed by difficulty in breathing. Some people feel nauseous or experience a sense of floating. If a person consumes enough toxin, muscles of the chest and abdomen become paralyzed, including muscles used for breathing, and the victim can suffocate. Death from Paralytic Shellfish Poison has occurred in less than 30 minutes.

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